The correct answer is that the key lacks automatic rotation, which may violate compliance requirements. This is because major compliance frameworks like PCI DSS, SOC 2, and NIST SP 800-57 mandate periodic cryptographic key rotation to limit the volume of data encrypted under a single key and to mitigate the blast radius of a key compromise. On the Google Professional Cloud Security Engineer exam, this scenario tests your understanding of key rotation compliance importance and the specific controls required by cloud security standards. A common trap is assuming a key is compliant simply because it is valid and functional; the exam emphasizes that automatic rotation is a distinct, non-negotiable requirement for meeting audit mandates. Memory tip: think “Rotate or violate” — if a key isn’t set to auto-rotate, an auditor will flag it as a compliance gap.
PCSE Supporting compliance requirements Practice Question
This PCSE practice question tests your understanding of supporting compliance requirements. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Refer to the exhibit. A compliance auditor reviews the key configuration and finds a potential issue. What is the most likely compliance impact?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The key lacks automatic rotation, which may violate compliance requirements
Option C is correct because many compliance frameworks (e.g., PCI DSS, SOC 2, NIST SP 800-57) require cryptographic keys to be rotated periodically to limit the amount of data encrypted under a single key and reduce the impact of key compromise. In Cisco's key configuration, if automatic rotation is not enabled or configured, the key remains static, which can violate these compliance mandates. The auditor identifies the lack of automatic rotation as a potential non-compliance issue, even if the key is otherwise valid and functional.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
The key is disabled and cannot encrypt data
Why it's wrong here
The primary key state is ENABLED, so it is active.
✗
The key was created too recently
Why it's wrong here
The createTime is not inherently an issue; rotation is the concern.
✓
The key lacks automatic rotation, which may violate compliance requirements
Why this is correct
Many compliance standards (e.g., PCI DSS) require periodic key rotation; a null rotation period means no rotation is scheduled.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The key is not used for the correct purpose
Why it's wrong here
The purpose is ENCRYPT_DECRYPT, which is correct for general encryption.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Google Cloud often tests the distinction between a key being 'functional' versus 'compliant' — candidates may assume that because a key works and is not expired, it is compliant, but the trap is that compliance frameworks require proactive rotation policies, not just key validity.
Detailed technical explanation
How to think about this question
Under the hood, Cisco's key management systems (e.g., on ASA, FTD, or IOS platforms) often support key rotation via protocols like CKMS or manual rekeying. Automatic rotation ensures that a new key is generated and activated before the old key's cryptoperiod expires, maintaining forward secrecy and compliance with standards like NIST SP 800-57, which recommends cryptoperiods based on key type and environment. In real-world scenarios, failing to rotate keys can lead to audit findings, especially in environments subject to PCI DSS Requirement 3.6, which mandates periodic key changes.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Supporting compliance requirements — This question tests Supporting compliance requirements — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The key lacks automatic rotation, which may violate compliance requirements — Option C is correct because many compliance frameworks (e.g., PCI DSS, SOC 2, NIST SP 800-57) require cryptographic keys to be rotated periodically to limit the amount of data encrypted under a single key and reduce the impact of key compromise. In Cisco's key configuration, if automatic rotation is not enabled or configured, the key remains static, which can violate these compliance mandates. The auditor identifies the lack of automatic rotation as a potential non-compliance issue, even if the key is otherwise valid and functional.
What should I do if I get this PCSE question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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